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经营范围
发明名称
By-pass liner hanging apparatus
摘要
申请公布号
US2916092(A)
申请公布日期
1959.12.08
申请号
US19570660107
申请日期
1957.05.20
申请人
ERWIN BURNS
发明人
BURNS ERWIN
分类号
E21B43/10
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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